Department of Civil, Constructional and Environmental Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy.
Department of History, Representation and Restoration of Architecture, Sapienza University of Rome, Piazza Borghese 9, 00186 Rome, Italy.
Int J Environ Res Public Health. 2021 Dec 12;18(24):13108. doi: 10.3390/ijerph182413108.
Cool pavements are reflective and/or permeable pavements that improve microclimate of urban areas where heat islands cause discomfort to citizens. Stone pavements lower surface temperatures and reduce the amount of heat absorbed. This study assessed, using ENVI-met 4.3 LITE software, how air temperature and predicted mean vote depend on physical properties of the road pavement. A comparative microclimatic analysis was implemented on a rectangular square in Rome (Italy) in the summer, paved in three different ways: asphalt, traditional sampietrini, and permeable sampietrini. The model considered local weather parameters, surrounding fabric, and vegetation to give reliable results in terms of numerical and graphical output using the application tool Leonardo. The tested pavement types affected air temperature during the day, but did not influence this variable in the early morning. Permeable sampietrini pavement was more effective than traditional sampietrini pavement in reducing air temperature compared to the current asphalt surface. The road pavement did not, however, affect human comfort in terms of predicted mean vote. The obtained results are useful for further investigation of parameters that could modify the microclimatic conditions of urban areas.
冷却型铺面是反射性和/或渗透性铺面，可改善热岛导致城市居民不适的城市地区的微气候。石质铺面可降低地面温度并减少吸收的热量。本研究使用 ENVI-met 4.3 LITE 软件评估了道路铺面的物理特性如何影响空气温度和预测平均投票。在夏季，对意大利罗马的一个矩形广场进行了比较微气候分析，该广场采用三种不同方式铺面：沥青、传统碎石和渗透性碎石。该模型考虑了当地天气参数、周围结构和植被，以使用应用程序工具 Leonardo 提供可靠的数值和图形输出。测试的铺面类型会影响白天的空气温度，但不会影响清晨的这一变量。与当前的沥青表面相比，渗透性碎石铺面比传统碎石铺面更有效地降低空气温度。然而，路面不会影响预测平均投票的人体舒适度。所得结果可用于进一步研究可改变城市地区微气候条件的参数。
